Andres Villegas Ramirez

Associate Professor Andres Villegas Ramirez is affiliated with the University of New South Wales (UNSW) in the UNSW Business School, specifically the School of Risk and Actuarial Studies. He is also an Associate Investigator at the ARC Centre of Excellence in Population Ageing Research (CEPAR), where he was previously a Research Fellow.

Education:

• Doctoral studies at Bayes Business School (formerly Cass), London, focusing on mortality modelling and projection
• MSc in Industrial Engineering from Universidad de Los Andes, Colombia

Research Interests:
Andres specializes in mortality modelling, longevity risk management, and the application of analytics techniques in actuarial science and finance. His recent publications emphasize age-period-cohort models, actuarial valuation of insurance products, and demographic risk analysis. Key trends include interdisciplinary work combining actuarial science with public health and machine learning methodologies.

Selected Publications (2025-2018):

• 2025: Return smoothing in pooled annuity products
• 2025: Age-Period-Cohort claims reserving models
• 2025: Socioeconomic mortality differentials in England
• 2024: Multi-state long-term care insurance valuation
• 2024: Variable annuity scenario selection via LASSO regression
• 2024: U.S. mortality improvement drivers
• 2022: Affine mortality models for age-cohort analysis
• 2022: Stacked regression ensembles for mortality forecasting
• 2022: Volatility management in pooled annuities
• 2022: Regularization approaches for age-period-cohort mortality projections
• 2021: Robustness in mortality improvement rate modelling
• 2020: Deprivation impacts on adult mortality inequalities
• 2020: NDC pension schemes and longevity heterogeneity
• 2018: Cause-specific mortality by socioeconomic factors
• 2018: Multiobjective reinsurance optimization with evolutionary algorithms

Associated Institutions:

• ARC Centre of Excellence in Population Ageing Research (CEPAR)
• Bayes Business School (PhD alma mater)
• Universidad de Los Andes (MSc alma mater)